Analysis of bonding mechanism of glass fiber-reinforced bamboo plywood

Bamboo curtains, coarse glass fiber cloth, bamboo mat, poplar veneer, and fine glass fiber cloth impregnated with phenolic resin adhesive were sequentially laid from the inside to the outside, and the symmetrically balanced material was sent to the hot press. The bonding mechanism of the resulting g...

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Bibliographic Details
Published inBioresources Vol. 15; no. 1; pp. 529 - 543
Main Authors Li, Quan, Chen, Xiao-Hui, Qi, Wen-Yu, Wu, Hui, Li, Ji-Qing, Lin, Jin-Guo
Format Journal Article
LanguageEnglish
Published Raleigh North Carolina State University 01.02.2020
Subjects
Bamboo
Bonding agents
Bonding strength
Cement
Coupling agents
Curtains
Fiber reinforced materials
Fiberglass
Flooring
Fourier analysis
Fourier transforms
Glass fiber reinforced plastics
Hot pressing
Impact strength
Infrared analysis
Infrared spectroscopy
Mechanical properties
Moisture content
Phenolic compounds
Phenolic resins
Phenols
Physical properties
Plywood
Poplar
Product development
Raw materials
Scanning electron microscopy
Spectrum analysis
United States > US
China
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Summary:Bamboo curtains, coarse glass fiber cloth, bamboo mat, poplar veneer, and fine glass fiber cloth impregnated with phenolic resin adhesive were sequentially laid from the inside to the outside, and the symmetrically balanced material was sent to the hot press. The bonding mechanism of the resulting glass fiber-reinforced bamboo plywood (GFRBP) was analyzed using environmental scanning electron microscopy (ESEM) and Fourier transform infrared (FTIR) spectroscopy. The bonding between the phenolic resin and fiberglass cloth was achieved with a coupling agent, which reacted chemically with both the fiberglass cloth and phenolic resin. ESEM showed that glass fiber was bonded strongly with phenolic resin after treatment with coupling agents such as KH-550, KH-560, and KH-792. When the GFRBP was damaged, there was no breakage at the bonding surface between the glass fiber and phenolic resin. During the hot-pressing process, the phenolic resin easily migrated to the middle of the gap between plywood plates, which promoted better integration and properties. FTIR results showed that the longitudinal sides of the GFRBP pressed by the fiberglass cloth that had been treated by the coupling agents KH-550 and KH-792 were similar to each other, but those treated with KH-792 contained more -CH2- and had a longer carbon backbone.
ISSN:1930-2126
1930-2126
DOI:10.15376/biores.15.1.529-543